hygrotest humidity transmitters

P - Probe with cable
testo humidity
sensor + NTC
Plastic probes
(PHT -20/70) or
stainless steel probes
(PHT -20/120)
Channel 1 + 2 (PHT)
Cable, 250..2,000 mm
Broad selection of displays (optional)
Control menu via 3 internal buttons
The hygrotest 600
A professional instrument, the hygrotest 600 is applied in industrial
processes and air conditioning systems, wherever long-term
stability is required. The various versions allow for wall-mounting
for measurement in rooms and similar areas, for duct-mounting
for measurement in ducts and for location of the probe up to 2
metres from the housing (connected by a
cable). Instead of the relative humidity, the dew point temperature
can be output.
Technical data, hygrotest 600
Housing:
Material: ABS, colour grey (RAL 7035)
Size:
Screw connections:
130 x 140 x 53 mm
2 x M16 x 1.5 (ABS)
Ambient temperature: -20...+70 °C
Storage temperature: -40...+80 °C
Protection type: IP 65
Sensor:
Humidity:
Temperature:
Measuring range:
Testo humidity sensor
NTC
Humidity: 0...100 % RH *
Temperature: Version Operating temperature range
Accuracy:
Humidity:
Temperature:
Analogue outputs:
Humidity and temperature:
Analogue output, humidity:
Resolution:
Drift:
Analogue output, temperature:
Resolution:
Drift:
Supply:
Supply:
Supply with display H1:
Max. load:
Max. load with display H1:
Typical temperature
coefficients of the outputs:
Response time:
EMC:
600 WH -
600 WHT -20/70 -20...+80 °C (scale set at +70°)
600 DH -
600 DHT -20/70 -20...+80 °C (scale set at +70°)
600 DHT -20/120 -20...+120 °C
600 PHT -20/70 -20...+80 °C (scale set at +70°)
600 PHT -20/120 -20...+120 °C
±2 % RH (within a range of 0...90 % RH), ±3 % RH (90...100 % RH)
± 0.3 °C (-20...+50 °C), 1.5 % of value (> 50 °C)
4...20 mA (2-wire system)
0.02 mA
0.001 mA/K
0.02 mA
0.003 mA/K
24 V DC (10...30 V DC)
minimum 20 VDC
at 10 V 100 , at 18...30 V 500
at 20...30 V, 50
±0.002 mA/°C (referred to 25 °C)
t90 approx. 10...20 sec.
in accordance with directive 89/336 EEC
All data relate to a nominal temperature of +25 °C.
Probes: (diameter 12 mm)
Version Material Overall length, Min./ Max. Sensor protection cap,
incl.protection cap probe length standard
600 WH PC 65 mm - ABS slotted
600 WHT -20/70 PC 65 mm - ABS slotted
600 DH PC 200 mm - sintered stainless steel cap
600 DHT -20/70 PC 200 mm - sintered stainless steel cap
600 DHT -20/120 Stainless steel 200 mm 100/800 mm sintered stainless steel cap
600 PHT -20/70 PC 100 mm - sintered stainless steel cap
600 PHT -20/120 Stainless steel 210 mm 150/800 mm sintered stainless steel cap
* For continuous use in high humidity (RH > 90 %), select the Hygrotest
650 PHT or 650 HP.
Monitored warehousing of paper,
textiles, granulates and
pharmaceuticals.
Channel 1 Channel 2
Measured value % RH, °Ctd, °Ftd T
Range 0 ... 100 % -20 ... +70/120 °C
Output 4 ... 20 mA 4 ... 20 mA
Freely scalable
Freely scalable
e.g. 20..100 % e.g. 10..40 °C
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