INSTALLATION AND MAINTENANCE INSTRUCTIONS
ZCK-1, ZCK-1E, ZCK-1EG, ZCK-1EN and ZCK-50
Zonecheck Keyswitch for Control and Monitoring of the Zonecheck Flow Switch Tester
Electrical Specifications Operating
Voltage: Operating Temperature: Operating Humidity: Mounting Options: Operation Modes: LED Operation: Tested to EN 61010-1
3825 Ohio Avenue, St.
Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495 www.
systemsensor.
com
ZCK-1: 120V, 60Hz; ZCK-1E, ZCK-1EG, ZCK-1EN and ZCK-50: 220VAC, 50Hz, 3w Max.
0°C to 49°C (32°F to 120°F) 5% to 95% RH (non-condensing) Includes back box for surface or flush mounting.
For pre-wiring, use a 411/16˝ x 411/16˝ back box Self-test: Wired loca...