Technical Data - DMT132

DMT132 User Guide

Document code
M211289EN
Revision
B
Language
English (United States)
Product
DMT132
Document type
User guide
Table 1. Measurement Performance
Property Description/Value
Dew Point
Measurement range -30 ... +50 °C (-22 ... +122 °F) Td
Accuracy at +20 °C (+68 °F)

±1 °C for -3 ... 20 °C (+26.6 ... +68 °F) Td1

±2 °C for -15 ... -3 °C (+5 ... +26.6 °F) Td1

See accuracy graph below

Typical Response Time at 20 °C (+68 °F) Gas Temperature and 1 Bar Pressure
-14 → +3 °C (+7 → +37 °F) Td

17 s (63 %)

40 s (90 %)

+3 → -14 °C (+37 → +7 °F) Td

33 s (63 %)

85 s (90 %)

Calculated Variables
Dew point converted to atmospheric pressure Td/f atm
Figure 1. Accuracy Over Temperature Range
Table 2. Operating Environment
Property Description/Value
Operating temperature -30 ... +50 °C (-22 ... +122 °F)
Operating pressure 0 ... 20 bar
Relative humidity 0 ... 100 %RH
Sample flow rate No effect on measurement accuracy
Measured gases Non-corrosive gases
EMC compliance EN61326-1, Industrial Environment
Table 3. Outputs
Property Description/Value
Analog output (scalable) 4 ... 20 mA, 2-wire
Resolution for current output 0.002 mA
Accuracy of analog outputs at +20 °C ±0.05 % full scale
Typical temperature dependence ±0.005 % of full scale/ °C
Connector 4-pin M8 (IEC 60947-5-2)

LED indication available for defined dew point limit/error state indication

RS-485 serial line for service use

Table 4. Mechanical Specifications
Property Description/Value
Sensor Vaisala HUMICAP® 180R
Recommended calibration interval (in refrigerant dryer application) 2 years
Mechanical connection G1/2" ISO
Operating voltage 10 .... 28 VDC
External load

Max. 100 Ω for supply voltages < 20 VDC

Max. 500 Ω for supply voltages 20 ... 28 VDC

Weight 65 g (2.3 oz)
Housing material PPS + 40 % GF
IP rating IP65 (NEMA 4)
Storage temperature range -40 ... +80 °C (-40 ... +176 °F)
Start-up time 3 s
Table 5. Output Cable Specifications
Property Description/Value
Connector Straight, molded M8 female (IEC 60947-5-2)
Color Black
Number of contacts 4
Conductors 0.25 mm2 (× 4) (0.00039 in2 (× 4))
Insulation PVC
Cable diameter 5.0 mm (0.2 in)
Protection class IP67 / NEMA 4
Wire color code EN50044
1 When dew point is below 0 °C (+32 °F), the transmitter outputs frost point.