L
egacy configuration codes
Valid from 25th of February 2003
HMP238 Humidity and Temperature Transmitter
With pressure tight high temperature probe for pipeline installations
Industrial humidity and temperature transmitter
HMP238
1
PRICE
Transmitter
RH+T
A
type
RH+T+Td
B
RH+T+a+Tw+x
C
RH+T+Td+a+Tw+x+h
D
RH+T+h
F
Display
no display
1
display on transmitter cover
2
Probe cable length
2 m cable, +180 °C
(+356 °F)
A
5 m cable, +180 °C
(+356 °F)
B
10 m cable, +180 °C
(+356 °F)
C
Power supply,
24 V, no connectors
0
alarm output &
115 V, no connectors
1
connectors
230 V, no connectors
2
24 V, + alarm output unit (no connectors)
3
24 V, shared connector for power supply and analog outputs
4
24 V, as above + alarm output unit not on connector
5
115 V, connector for analog outputs
6
230 V, connector for analog outputs
7
Using serial interface:
24 V, connector for RS232C
8
24 V, 2 connectors: RS232C and analog power supply
9
24 V, 2 connectors shared for power supply and RS485
9
Serial interface
RS 232C
A
RS 485/RS 422
B
current loop
C
Sensor protection
sintered stainless steel filter (16452)
1
Analog output
4...20 mA
A
A
signals
0...20 mA
B
B
(Ch1 and Ch2)
0...1 V
C
C
0...5 V
D
D
0...10 V
E
E
channel 1
channel 2
Parameters for the
RH
(0...100 %RH)
1
1
analog outputs
T
(range: see below)
2
2
(If available in the
Td
(-40...+100 °C)
(-40...+212 °F)
3
3
chosen transmitter
a
(0...600 g/m3)
(0...+262 gr/ft3)
4
4
type)
Tw
(0...+100 °C)
(+32...+212 °F)
5
5
x
(0...500 g/kg d.a.)
(0...3500 gr/lb d.a.)
6
6
h
(-40...1500 kJ/kg)
(-17.2...644.9 Btu/lb)
7
7
(Ch1 and Ch2)
channel 1
channel 2
Analog output range -20...+80 °C
(-4...+176 °F)
A
for temperature
-20...+120 °C
(-4...+248 °F)
B
-20...+180 °C
(-4...+356 °F)
C
-40...+80 °C
(-40...+176 °F)
D
-40...+120 °C
(-40...+248 °F)
E
-40...+180 °C
(-40...+356 °F)
F
Units (local display
metric
1
and serial interface)
non-metric
2
Installation kit
no installation kit
A
ball valve set for pipeline installations
D
Regaining option *)
no regaining
(HUMICAP K)
3
and sensor type
regaining
(HUMICAP KC)
2
Manual language
No manual
A
English
B
German
C
French
D
Finnish
E
TOTAL
*) Humidity sensor regaining can be used to reduce the effects of some chemical contaminants.
QTY
If the regaining option is chosen, the sensor must be protected either with a sintered filter or
TOTAL VALUE
with a PPS plastic grid with steel netting; the PPS plastic grid can not be used.
Please note that if mains power (115/230V) is selected regaining cannot be used.
For further information about this option, please see product data sheet or contact Your Vaisala representative.
Selections in bold are included in the prices of the basic versions.
Selections in italic are available at an extra price.
Example of order code with typical settings:
HMP235
A
1
A
0
A
1
A
A
1
2
A
1
A
3
B
End customer:
