Transforming Technologies Continuous Workstation Monitors Model CM420 User's Manual
Ohm Metrics
Continuous Workstation Monitors Model CM420
Instruction Manual
CM410 Installation Diagrams
- Mount monitor under bench area (use included screws or Velcro).
- Plug wire from the Common Ground Point to the Bench Sys- tem Ground located on the back of the
- Connect each operator wrist strap jacks to back of the moni-tor labeled “Right and Left Wrist Strap”.
- Plug AC power supply to monitor and grounded 110v outlet (monitor grounded through AC Adapter).
- Operator LED should be RED and alarm will sound 8-10
- With wrist strap worn correctly while plugged into monitor, LED will go from RED to GREEN when in use indicating
Operation
Monitoring begins when the coiled cord of the wrist strap is plugged into the monitor or remote jack. The status of a wrist strap resistance is indicated by a the bicolor LED and audi- ble Alarm:
Stand-by indication.
If the wrist strap is removed or not being worn but is still plugged into monitor, an audible alarm will sound for 4-6 seconds, and the “OP” (operator) led will be will be blink RED.
Normal indication.
For normal operating resistance “OPER”/”BENCH” led will
be GREEN.
High alarm.
If the operator wrist strap or worksurface mat’s resistance is higher than maximum, the corresponding led will turn RED and audible alarm will sound.
Calibration and Verification
The CM420 is factory calibrated and fixed. It does not re- quire re-calibration. It is recommended to verify proper op- eration with the CM420PV verification unit available from Transforming Technologies.
Product Specifications
| Wrist strap open circuit voltage | 0.7 VDC, +0.1VDC @ < 2mA |
| Alarm indicators | Visual, audible |
| Alarm set point | 38 to 87pF (human body); with1 meg ohm wrist strap resistance |
| Unit monitoring capabilities | One person and one mat |
| Periodic Verification Units | CM420PV: NIST Calibrated Periodic verification tool for CM410 |
| Dimensions/Weight | 1.00” H x 4.00” W x 2.40” D (2.54 x 10.16 x 5.84 cm) 12.4 oz |
| Mounting | Mounting materials included |
| Power Supply | Input: 120VAC—60hz, Output: 12VDC, 200mA |
| Audible Alarm | 10 beeps (max); 5 seconds |
| Adjustment | No adjustments required |
Service and Warranty
Transforming Technologies, LLC provides a limited warranty for the Model CM400, CM410 and CM420. All new products are guaranteed to be free from defects in material and workmanship for a period of one (1) year from the date of shipment. Liability is limited to servicing (after evaluating, repairing or replacing) any product returned to Transforming Technologies. The company does not warrant damage due to misuse, neglect, alteration or accident. In no event shall Transforming Technologies be liable for collat- eral or consequential damages. To receive service under warranty, please contact Transforming Technologies.