Ion Systems
MODEL 210
W W W . M K S I N S T. C O M
Ionization Systems
Charged Plate Monitor
The Charged Plate Monitor (CPM) Model 210 is an easy to use, self-contained
instrument for testing ionizer performance. To measure long-term average balance,
the voltage plate is set to zero and allowed to float. The voltage then swings positive and negative as the electrostatic field fluctuates and ions arrive at the plate.
The CPM’s peak voltage mode records and displays peak voltage swing levels,
while an LED bar display clearly indicates the swing of pulsing ionization systems.
To measure discharge time, the plate can be charged to 1,000 or 5,000 volts of
either polarity, set to one of several stop voltages, and timed with an internal timer.
The Model 210 CPM makes all measurements described in Ionization Standard
ANSI EOS/ESD S3.1-2006 of the ESD Association.
Features and Benefits
•
1
User-selectable charging levels
(1 or 5 KV) and stop levels
(50, 100 or 500 V)
• Test ionizer discharge time at a variety of
•
Displays floating offset voltage, peak
voltage swing, and long-term average
balance
•
•
Unique LED bar graph for easy positive
and negative balancing
• Easily visualize voltage swings
•
Analog output
•
U.S. Patent No. 6,807,044
settings depending on user needs
View ionizer balance in real-time or
display high and low levels
Get hard copy documentation of plate
voltage levels via signals to a chart
recorder
Specifications
Charged Plate
Isolation
Self-discharge <10% in 5 minutes with 40% relative humidity and ambient ionization levels <200 ions/cc
Capacitance
20 pf ±2 pf. No circuitry is attached to the plate, resulting in zero stray capacitance
Charging
Internal power supplies for each polarity, current limited
by 1 GW resistor
Voltage
measurement
Non-contacting electrostatic fieldmeter
Dimensions
6 x 6 in. (15.2 x 15.2 cm), isolated by Teflon®
Plate Voltage Function
Controls
• TRACK monitors actual plate voltage
• +PEAK/-PEAK monitors peak plate voltage
• OFFSET monitors long-term average balance
Display
4 1/2 digits, 0.4” (1 cm) digit height, least significant digit
indicates 1V
Accuracy
±2% chopper stabilized (accuracy unaffected by air
ionization)
Plate Charging Function
Controls
• LEVEL switch selects either 1 or 5 KV charging
voltage
• ZERO switch grounds the isolated plate
• ZERO SET used with the ZERO switch sets the plate
voltage to zero
• Two CHARGE switches connect the positive and the
negative internal charging source to the isolated plate
Balance Meter Function
Controls
Full-scale level can be set to 50, 100, or 250V for each
polarity
Display
10-segment LED bar graph for each polarity, Separate
LED indicates over-range
Discharge Timer Function
Controls
• STOP LEVEL can be set to 50, 100, or 500V for both
polarities
• TIMER RESET sets timer to zero
Display
5 1/2 digits, 0.4” (1 cm) digit height, least significant digit
indicates 0.1 seconds
Accuracy
Crystal-controlled
Unique Charging Method
The Model 210 Charged Plate Monitor (CPM) ensures
high accuracy with its unique method of charging the
isolated plate. The Model 210 utilizes a top-mounted,
stainless steel plate monitored by an internal electrostatic fieldmeter. The plate is charged by a solenoidactuated contact, then isolated from the rest of the
instrument during the measurement process. This
method eliminates the need for an internal high-voltage relay as well as the inaccuracies caused by poor
isolation and stray capacitance. Using this method
without ionization, a charge of 1,000 volts decays to
100 volts in 12 to 14 hours—the lowest rate of charge
leakage on any CPM available. The monitor’s chopper-stabilized circuitry optimizes accuracy in ionized
environments.
Ordering Information
91-0210-C
120V Model 210 CPM, case included
91-0210-100V-C
100V Model 210 CPM, case included
91-0210-220V-C
220V Model 210 CPM, case included
91-0181
Instrumentation tripod with carrying
case, sold separately
General
Input
120 VAC + 10%; 50 or 60 Hz; 25 watts; fuse-protected;
100V and 220V models available
Recorder
output
0 to 10V available at rear panel BNC connector, corresponding to plate polarity; connects to a variety of
external recorders, scale: 1 mV=1V
Dimensions
6H x 9W x 10D inches (15.2H x 22.9W x 25.4DD cm)
Weight
7.5 lb (3.4 kg)
Options
Heavy duty tripod for cleanroom use
Warranty
2-year limited warranty
Ion Systems
DS-0210 Ver. 2
© 2007 MKS Instruments, Inc.
All rights reserved.
MKS, Ion Systems
1750 North Loop Road, Alameda, CA 94502
Tel: 510.217.0600 or 800.367.2452
Fax: 510.217.0484
info@ion.com
www.mksinst.com