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Model DS1200-AMT Dewpoint Transmitter

Delta Instrument DS1200

Single channel user friendly solution for continuous on-line dewpoint measurement in dry process gases and dry compressed a

4-20mA Dewpoint Hygrometer
  • Description
  • Specification
  • Application
  • Options
  • Downloads

4-20mA In-Line Dewpoint Hygrometer

Model DS1200-PDT 4-20mA In-Line Dewpoint Hygrometer has a two wire 4-20mA transmitter designed for continuous measurement of moisture content in gases or compressed air.

  • Low Cost Solution.
  • Simple to Install and set up.
  • Reliable.
  • Accurate.
  • Stable results

The long lasting Polymer sensing element can be utilised to measure the moisture content in many applications, see examples below. The PDT transmitter can also be factory configured to give a 4-20mA linear signal for %RH. It is supplied with a Certificate of Calibration traceable to international humidity standards.

  • Very user friendly with advanced functionality.
  • Display measurement in °F, °C Dewpoint or %RH.
  • 22V – 253V AC or DC Operation.
  • Accuracy better than ±3.6°F (±2°C)Td.
  • 2 Independent, fully programmable alarm relays.
  • Cable Length >1km to transmitter.
  • Ideally suited for higher dewpoints.

The Model PDT transmitter has been designed to cope with extreme environmental conditions. The rugged stainless steel construction offers protection to NEMA4 (IP65), with transmitter electrical connections made via secure industrial connector.

continuous measurement of moisture content in gases or compressed air.

MODEL PDT 4-20mA In-Line Dewpoint Hygrometer Dewpoint Transmitter only

MEASURING RANGE: -40 to +86°Fdp (-40 to +30°Cdp) / -76 to +68°Fdp (-60 to +20°Cdp) or %RH,

PRESSURE RANGE: -1 to 16 bar.

POWER SUPPLY: 24 VDC (10 – 30 VDC).

PROTECTION CLASS: NEMA4 (IP 65).

EMC: according to DIN EN 61326.

OPERATING TEMP: -4°F to 158°F (-20°C to +70°C)

ELECTRICAL CONNECTION: M12, 5-pole

THREAD: G1/2”

DIMENSIONS: Ø 30 mm, length 130 mm

OUTPUT: 4-20 mA

ANALOGUE OUTPUT MAX LOAD: 500 Ω

MECHANICAL WARRANTY: 12 months in case of faulty workmanship and defective parts.

CALIBRATION WARRANTY: 12 months.

MODEL DS1200 Display only

DS1200 DISPLAY INDICATOR SPECIFICATIONS

ENCLOSURE: 1/8 DIN panel mounting ABS case

DISPLAY: 4 digit, 14 segment LED indicator. Red characters 13.8mm high. Factory set to display in °F, °C or %RH

SUPPLY VOLTAGE: Universal 22Vac – 253Vac 50/60Hz & 20Vdc – 300Vdc 150mA to 15mA

MAX VOLTAGE: 250 VRMS

MAX CURRENT: 2A /AC

MAX AC POWER: 500VA

MAX CURRENT AT 24 VDC: 1A

POWER CONSUMPTION: 3.5W Maximum

OUTPUT SIGNAL: Linear 4 to 20mA, fully isolated. Maximum load 800Ω / 16Vdc

PROGRAMMABLE SIGNAL RANGES: 0…20 or 4…20mADC (Factory set)

ISOLATION: Voltage Test / Operation – 2.3kVac / 250Vac

CURRENT OUTPUT-

LOAD (max): 20mA / 800Ω / 16VDC

LOAD STABILITY: ≤ 0.01% of span / 100 Ω

RELAY-

RELAY FUNCTION: setpoint

HYSTERISIS: 1% of range

ALARM RELAYS: 2 independent fully programmable switched contacts. Rated 2A @ 250Vac / 1A @ 24Vdc.

ANNUNCIATORS: AL1 & AL2 LED’s on front panel indicating status of each alarm

ELECTROMAGNETIC COMPATIBILITY (EMC):

Emission & Immunity: Complies with EN 61326-1

LVD 73/23/EEC: Complies with EN 61010-1

UL, STANDARD OF SAFETY: Certified to UL508

WEATHERPROOF CLASSIFICATION: Front panel only – IP65 (NEMA 4X).

TEMPERATURE OPERATING RANGE: -40F to 1400F (-200C to +600C)

DISPLAY RESPONSE TIME (0-90%, 100 to 10%): 0.4s.

WIRE SIZE, PIN 45 & 46 (max): 1 x 1.5mm2 stranded wire

WIRE SIZE, OTHERS (max): 1 x 2.5mm2 stranded wire

RELATIVE HUMIDITY: < 95% RH

ERROR DETECTION: Cable loop break

DIMENSIONS (HxWxD): 48 x 96 x 120mm

CUT OUT DIMENSIONS: 44.5 x 91.5mm

WEIGHT: 230 grams

  • Dewpoint or Trace Moisture in Gases.
  • Dewpoint or Trace Moisture in Dry Compressed Air.
  • Fluid bed dryers
  • Refrigerant dryers
  • Desiccant wheel dryers
  • Rotary wheel dryers
  • Turbine air intakes
  • Wind tunnels
  • HVAC applications
  • Cool stores
  • Air braking systems
  • Condensation alarms
  • Controlled atmosphere environments
  • Precision engineering applications
  • Heat treatment gases
  • Environmental chambers
  • Product drying
  • Ambient air monitoring
  • Gas turbine frost protection systems
  • Switchgear monitoring
4-20mA In-Line Dewpoint Hygrometer Options Order Code
Base Unit DS1200-PDT -40/86°Fdp (-40/30°Cdp) DS1200-PDT -76/68°Fdp (-60/20°Cdp) DS1200-PDT RH
If a longer cable is needed: Your PDT Transmitter comes complete with 2 meters of connecting cable as standard. To order a longer length in meters, add number after this part number. Example: CAB115-PDT-10 for 10m (33ft) Non-Standard off the shelf cables available in 3, 4, 5, 10, 12, 15, 25m lengths. For longer lengths please call. CAB115-PDT + [XX] (XX=Length in Metres)
Transmitter Holder. Comes complete with a mounting plate  
Inlet and Outlet Pipe Fittings X = Choose INLET Pipe Fitting 0 = None 1/8” NPT Port 4 = 1/4” – Pipe OD 8 = 1/8” – Pipe OD 6 = 6mm – Pipe OD Y = Choose OUTLET Pipe Fitting 0 = None 1/8” NPT Port 4 = 1/4” – Pipe OD 8 = 1/8” – Pipe OD 6 = 6mm – Pipe OD SH-PDT + [X] [Y]

4-20mA In-Line Dewpoint Hygrometer

Model DS1200-PDT 4-20mA In-Line Dewpoint Hygrometer has a two wire 4-20mA transmitter designed for continuous measurement of moisture content in gases or compressed air.

  • Low Cost Solution.
  • Simple to Install and set up.
  • Reliable.
  • Accurate.
  • Stable results

The long lasting Polymer sensing element can be utilised to measure the moisture content in many applications, see examples below. The PDT transmitter can also be factory configured to give a 4-20mA linear signal for %RH. It is supplied with a Certificate of Calibration traceable to international humidity standards.

  • Very user friendly with advanced functionality.
  • Display measurement in °F, °C Dewpoint or %RH.
  • 22V – 253V AC or DC Operation.
  • Accuracy better than ±3.6°F (±2°C)Td.
  • 2 Independent, fully programmable alarm relays.
  • Cable Length >1km to transmitter.
  • Ideally suited for higher dewpoints.

The Model PDT transmitter has been designed to cope with extreme environmental conditions. The rugged stainless steel construction offers protection to NEMA4 (IP65), with transmitter electrical connections made via secure industrial connector.

continuous measurement of moisture content in gases or compressed air.

MODEL PDT 4-20mA In-Line Dewpoint Hygrometer Dewpoint Transmitter only

MEASURING RANGE: -40 to +86°Fdp (-40 to +30°Cdp) / -76 to +68°Fdp (-60 to +20°Cdp) or %RH,

PRESSURE RANGE: -1 to 16 bar.

POWER SUPPLY: 24 VDC (10 – 30 VDC).

PROTECTION CLASS: NEMA4 (IP 65).

EMC: according to DIN EN 61326.

OPERATING TEMP: -4°F to 158°F (-20°C to +70°C)

ELECTRICAL CONNECTION: M12, 5-pole

THREAD: G1/2”

DIMENSIONS: Ø 30 mm, length 130 mm

OUTPUT: 4-20 mA

ANALOGUE OUTPUT MAX LOAD: 500 Ω

MECHANICAL WARRANTY: 12 months in case of faulty workmanship and defective parts.

CALIBRATION WARRANTY: 12 months.

MODEL DS1200 Display only

DS1200 DISPLAY INDICATOR SPECIFICATIONS

ENCLOSURE: 1/8 DIN panel mounting ABS case

DISPLAY: 4 digit, 14 segment LED indicator. Red characters 13.8mm high. Factory set to display in °F, °C or %RH

SUPPLY VOLTAGE: Universal 22Vac – 253Vac 50/60Hz & 20Vdc – 300Vdc 150mA to 15mA

MAX VOLTAGE: 250 VRMS

MAX CURRENT: 2A /AC

MAX AC POWER: 500VA

MAX CURRENT AT 24 VDC: 1A

POWER CONSUMPTION: 3.5W Maximum

OUTPUT SIGNAL: Linear 4 to 20mA, fully isolated. Maximum load 800Ω / 16Vdc

PROGRAMMABLE SIGNAL RANGES: 0…20 or 4…20mADC (Factory set)

ISOLATION: Voltage Test / Operation – 2.3kVac / 250Vac

CURRENT OUTPUT-

LOAD (max): 20mA / 800Ω / 16VDC

LOAD STABILITY: ≤ 0.01% of span / 100 Ω

RELAY-

RELAY FUNCTION: setpoint

HYSTERISIS: 1% of range

ALARM RELAYS: 2 independent fully programmable switched contacts. Rated 2A @ 250Vac / 1A @ 24Vdc.

ANNUNCIATORS: AL1 & AL2 LED’s on front panel indicating status of each alarm

ELECTROMAGNETIC COMPATIBILITY (EMC):

Emission & Immunity: Complies with EN 61326-1

LVD 73/23/EEC: Complies with EN 61010-1

UL, STANDARD OF SAFETY: Certified to UL508

WEATHERPROOF CLASSIFICATION: Front panel only – IP65 (NEMA 4X).

TEMPERATURE OPERATING RANGE: -40F to 1400F (-200C to +600C)

DISPLAY RESPONSE TIME (0-90%, 100 to 10%): 0.4s.

WIRE SIZE, PIN 45 & 46 (max): 1 x 1.5mm2 stranded wire

WIRE SIZE, OTHERS (max): 1 x 2.5mm2 stranded wire

RELATIVE HUMIDITY: < 95% RH

ERROR DETECTION: Cable loop break

DIMENSIONS (HxWxD): 48 x 96 x 120mm

CUT OUT DIMENSIONS: 44.5 x 91.5mm

WEIGHT: 230 grams

  • Dewpoint or Trace Moisture in Gases.
  • Dewpoint or Trace Moisture in Dry Compressed Air.
  • Fluid bed dryers
  • Refrigerant dryers
  • Desiccant wheel dryers
  • Rotary wheel dryers
  • Turbine air intakes
  • Wind tunnels
  • HVAC applications
  • Cool stores
  • Air braking systems
  • Condensation alarms
  • Controlled atmosphere environments
  • Precision engineering applications
  • Heat treatment gases
  • Environmental chambers
  • Product drying
  • Ambient air monitoring
  • Gas turbine frost protection systems
  • Switchgear monitoring
4-20mA In-Line Dewpoint Hygrometer Options Order Code
Base Unit DS1200-PDT -40/86°Fdp (-40/30°Cdp) DS1200-PDT -76/68°Fdp (-60/20°Cdp) DS1200-PDT RH
If a longer cable is needed: Your PDT Transmitter comes complete with 2 meters of connecting cable as standard. To order a longer length in meters, add number after this part number. Example: CAB115-PDT-10 for 10m (33ft) Non-Standard off the shelf cables available in 3, 4, 5, 10, 12, 15, 25m lengths. For longer lengths please call. CAB115-PDT + [XX] (XX=Length in Metres)
Transmitter Holder. Comes complete with a mounting plate  
Inlet and Outlet Pipe Fittings X = Choose INLET Pipe Fitting 0 = None 1/8” NPT Port 4 = 1/4” – Pipe OD 8 = 1/8” – Pipe OD 6 = 6mm – Pipe OD Y = Choose OUTLET Pipe Fitting 0 = None 1/8” NPT Port 4 = 1/4” – Pipe OD 8 = 1/8” – Pipe OD 6 = 6mm – Pipe OD SH-PDT + [X] [Y]