Product guide

13
Humidity and Dew-Point Instruments
Please note: Michell Instruments adopts a continuous development program which sometimes
necessitates specifi cation changes without notice. Please contact us for latest version.
www.michell.com
HVAC / Environmental Control
PC33 & 52
Analog Relative Humidity and Temperature Probe
The PC series offers a comprehensive range of relative
humidity probes for accurate, stable and repeatable
measurements. Available with analog output signals, the PC
series can be installed in a wide variety of applications.
Highlights
• Low cost PC33 with analog output is designed for HVAC
applications
• PC52 with analog output is designed for accurate
measurement in controlled environments
Technical Specifi cations
Performance
Measurement range (RH) 0–100% RH
Measurement range (T) -20 to +80°C (-4 to +176°F)
Accuracy at 23°C (73°F)
Humidity
PC52: <±2% RH (10–90% RH)
PC33: <±3% RH (30–80% RH)
Accuracy at 23°C (73°F)
Temperature
PC52: ±0.2°C (±0.36°F)
PC33: ±0.3°C (±0.54°F)
Stability – RH Sensor ±1% RH/year
Response time – RH Sensor <10 sec typical (for 90% of the step change)
Electrical output/input
Output signal 4–20 mA, 0–1, 0–5, 0–10 V
Supply voltage 14–30 V DC (for 0-5 / 0-10 V output)
5–30 V DC (0–1 V & mA output)
Operating conditions
Operating temperature
Probe, Housing
Storage
-30 to +85°C (-22 to +185°F)
-40 to +85°C (-40 to +185°F)
Mechanical specifi cation
Ingress protection IP65 (NEMA 4 level)
Housing material Molded polymer or stainless steel (ordering
option)
Dimensions L=130mm, ø19mm (L=5.11”, ø0.74”)
Weight 30g (1.06oz) without cable (molded polymer
version)
Electrical connections M12
Dimensions
Accessories and Spare Parts
19mm (0.75”) slotted protection cap black A000002
19mm (0.75”) PVDF fi lter A000014
19mm (0.75”) PVDF fi lter with protection cap black A000015
19mm (0.75”) Mesh fi lter with protection cap, black A000021
19mm (0.75”) Arrow SS sintered fi lter 5m / 10m / 20m A000025/26/27
19mm (0.75”) Connector, no cable, with screw terminals A000030
19mm (0.75”) Connector with cable (customer spec length) A00030XM
19mm (0.75”) Connector with 2m (6.5’) cable A000031
19mm (0.75”) Connector with 5m (16’) cable A000032
19mm (0.75”) Foil fi lter 2m with protection cap black A000040
19mm (0.75”) Oleophobic foil fi lter 0.7m with protection
cap black
A000042
19mm (0.75”) Foil fi lter 1.5m w/protection cap black A000044
3/4” NPT SS adj. fi tting for SS probes A000100
Al mounting fl ange for ø19.0mm (ø0.75”) SS probe A000110
ø90.0mm (ø3.54”) Wall mount weather protection cap A000120
ø120.0mm (ø4.72”) Wall mount weather protection cap A000125
Mini fl ange for ø19.0mm (ø0.75”)
molded polymer probe A000150
You can check your hygrometer with the Control Kit HKC
which is based on the principle of non-saturated salt
solutions. Refer to technical data sheet CONTROL KIT
HKC
Issue No: PC33&52_97178_V2_UK_1110