Dwyer Instruments SERIES THC Catalog Page

[60]

[134.30]

SERIES THC

TEMPERATURE/HUMIDITY SWITCH

Independent Displays, 61 Programmable Parameters, 4 SPST Relays

Humidity Switches

The Series THC Temperature/Humidity Switch simultaneously measures and
controls temperature and humidity. The unit offers a 3-digit red display for temperature
indication and a 3-digit green display indicating humidity. The Series THC is equipped
with four independent relays, two for temperature control and two relays for humidity
control.
The THC Temperature/Humidity Switch accepts up to two temperature probe inputs
(sold separately) and a humidity sensor. A humidity sensor with 0-1 V, 3 V (THC-P sold
separately), or 4-20 mA output can be used with the Series THC.

FEATURES/BENEFITS

• Temperature and humidity control in one device

• Password protected parameter settings

• Selectable fail safe status of relay outputs

APPLICATIONS

• Isolation chambers

• Environmental chambers

• Greenhouses

• Beer and wine chillers

MODEL CHART
Model Supply Power Unit
THC-10
THC-11
THC-20
THC-21

115 VAC
115 VAC
230 VAC
230 VAC

°F
°C
°F
°C

4-3/32

[103.98]

5-9/32

SPECIFICATIONS
Measurement Range: Temperature:

-58 to 302°F (-50 to 150°C); Humidity: 0
to 100% RH.
Input: Up to 2 thermistors and 1
humidity sensor.

Output: 4 SPST, 8 A relays @ 250 VAC.
Horsepower Rating (HP): 1/3 HP.
Control Type: ON/OFF direction,

direct or reverse acting, neutral.
Power Requirements: 110 or 230 VAC
(depending on model).
Accuracy: Temperature ±0.5% of probe
range; Humidity: 20 to 90%.

ACCESSORIES
Model Description
THC-P

Humidity probe, 3 V output, 4 ft (1.2 m) cable

TS-5

Temperature probe, PVC with 5 ft (1.5 m) cable

TS-6

Temperature probe, metal with 5 ft (1.5 m) cable

TS-51

Temperature probe, PVC with 10 ft (3 m) cable

TS-61

Temperature probe, metal with 10 ft (3 m) cable

5 [127.00]

2-7/16

1-15/16

[61.84]

[49.21]

3-7/8

[98.43]

Display: Two 3-digit displays. 1/2˝

digits.

Resolution: 0.1°.
Memory Backup: Nonvolatile memory.
Ambient Operating Temperature: 32 to

158°F (0 to 70°C).
Storage Temperature: -4 to 176°F

(-20 to 80°C).

Weight: 1.17 lb (530 g).
Panel Cutout: 5.15˝ x 3.97˝ (131 x 101

mm).

Front Panel Protection: IP64.
Agency Approvals: CE.

DWYER INSTRUMENTS, INC. 220