Monroe 275A Ground Test System
• CONVENIENT - Pressing a single button turns the instrument on and performs test.
• SIMPLE - No adjustments neccessary.
• SAFE - Powered by common 9-volt battery.
• ACCURATE - Hazard and Open conditions indicated within 10% of nominal values
• AFFORDABLE - Low Price permits use at each workstation.
• TWO RANGES - Meet most requirements
• SIMPLE - No adjustments neccessary.
• SAFE - Powered by common 9-volt battery.
• ACCURATE - Hazard and Open conditions indicated within 10% of nominal values
• AFFORDABLE - Low Price permits use at each workstation.
• TWO RANGES - Meet most requirements
Model :
Monroe 275A
The model 275A measures the resistance of personnel grounding systems (wrist straps and heel straps) and work area grounding systems (table mats and floor mats), and indicates if the resistance is high (open), low (hazard), or within acceptable limits to control damage to sensitive components due to electrostatic discharges.
Indicators, LED:
RED Hazard: Resistance
below 500kΩ
GREEN Safe: Resistance
between 500kΩ and 10 MΩ or 100MΩ (selectable)
YELLOW Open: Resistance above 10MΩ or 100MΩ (selectable)
Audible alarm: Sounds for Open or Hazard condition
Tolerance: +10%
of value
Battery: 9
volt, Eveready 216 or NEDA #1604 alkaline
Size: 3.8”
x 2.4” x 1.1”
Testing is as easy as pushing the test button and observing the color-coded indicator lights. The safe operating limit can be set at 10M or 100M ohms using a switch on the front of the instrument. The instrument is supplied with a ground cord. An optional leather carrying case is available.
