11 Constant ESD ground monitoring at the ESD workstation is critical
Zero Charge ESD Testers & Meters
Wrist strap, Heel Strap Measuring Systems, Resistance Checkers and Field meters
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Zero Charge™Constant ESD ground monitoring
at the ESD workstation is critical

Single Wire Wrist Strap Constant Ground Monitors

Continuously verifying the integrity of the ground system is critical to an effective ESD protection program. Using specialized impedance sensing technology, the ACM0, ACM1 and ACM2 single wire wrist strap monitors continuously check the total ground loop, including the operator, the wrist band and the coil cord. The systems are compatible with most single wire wrist straps.

  Model Number Type Specs. Owners Manual
ACM0_M.jpg ACM0 Single Wire Wrist Strap Ground Continuous Monitor
Monitors the wrist strap ground integrity of one operator. Uses audible and visual indicators.
Alarm set point: Wrist Strap 38 to 87pF (human body); with 1 Mohm wrist strap resistance
ACM1_M.jpg ACM1 Single Wire Wrist Strap and Table Mat Continuous Monitor
Monitors the ground integrity of one operator including  wrist strap and the work station ground.
Alarm set point: Wrist Strap: 38 to 87pF (human body); with 1 Mohm wrist strap resistance and work station mat: 6.5 Mohm
ACM2_M.jpg ACM2 Single Wire Wrist Strap and Table Mat Continuous Monito for 2 wrist straps and one mat (station grounding)
Monitors the ground integrity of two operators (two wrist straps) and one work station ground.
Alarm set point: Wrist Strap: 38 to 87pF (human body); with 1 Mohm wrist strap resistance and work station mat: 6.5 Mohm
A2CM2

Dual Wire Continuous Resistance Monitor
Monitors the ground integrity of two operators / two dual wire wrist bands and work station mats.
Alarm Limits: Wrist strap low limit: 35 megohm Wrist strap high limit: 1.8 megohm Mat high limit: 3.5 megohm

The Periodic Verifications Units

The Periodic Verification Units were developed to periodically verify (if needed) that the ACM Series Constant Monitoring Units are in proper working order. This low cost additions give you a peace of mind when you know that your grounding system is properly and continuously connected.

  Model Number Type User Manual
ATM-9202 ATM-9202 Periodic Verification Unit
is used to verify that the ACM1 Constant Ground Monitors are in proper working order.
ATM-9203 ATM-9203 Periodic Verification Unit
is used to verify that the ACM2 Constant Ground Monitors are in proper working order.
A2CM2PV Periodic Verification Unit Dual wire wrist straps
is used to verify that the A2CM2 Dual Wire Continuous Resistance Monitor are in proper working order.

Reliable, Repeatable Results

Accuracy and reliability are improved with the impedance technology incorporated into our constant monitors. False alarms disappear and adjustments are not necessary. Powered and grounded by an AC adapter, the system is fully automatic and begins sensing when a coil cord is plugged into the unit. A green light indicates a safe connection and a red light and audible alarm communicate an unsafe connection.

Continuous Monitors pay for themselves

ESD-S1.1 Standard notes that it is not necessary to test wrist straps daily when using constant monitoring systems. Higher value-added products especially benefit from the certainty of continuous monitoring.

The ACM0 , ACM1 and ACM2 are perfect solutions for assuring workstation grounding constant monitoring.

P/N for Ordering:

Item No.Description
ACM0 Single Wire Wrist Strap Ground Continuous Monitor
ACM1 Single Wire Wrist Strap and Table Mat Continuous Monitor
ACM2 Single Wire Wrist Strap and Table Mat Continuous Monitor
for 2 wrist straps and one mat (station grounding)
A2CM2 Dual Wire Continuous Resistance Monitor
ATM-9201 ACM0 Periodic Verification Unit
ATM-9202 ACM1 Periodic Verification Unit
ATM-9203 ACM2 Periodic Verification Unit
A2CM2PV A2CM2 Periodic Verification Unit Dual wire wrist straps