Trek 884 Hand-Held Electrostatic Voltmeters - Manual (Page 2)

Model 10/40A Specifications
Models 876 and 884 General Specifications
Ordering Information
Copyright ã 2011 TREK, INC. All specifications are subject to change. 1123/DEC
Models 876 and 884 Accessories Supplied
Item Part No. Item Part No.
Hand-held Electrostatic Voltmeter (0 to ±2 kV DC). . . . . . 876 Operating Instructions (Model 876). . . . . . . . . . . . . . 23100
Operating Instructions (Model 884) . . . . . . . . . . . . . . 23099
Hand-held Electrostatic Voltmeter (0 to ±20 kV DC). . . . 884
Ground Reference Cable Assembly . . . . . . . . . . . . . . . N9079
9-volt NEDA 1604 Battery, IEC 6R61 Battery, or
equivalent. . . . . . . . . . . . . . . . . . . . . . . . . . . . F1003
Model 876 Model 884 Common Features
Performance Performance (cont.)
Common Features
Measurement Range Operating Time Measurement Range
0 to ±20 kV DC. 8 hours with a new battery. 0 to ±2 kV DC.
Accuracy Hold
Accuracy
Better than ±5% of full scale over the A push button that, when pressed,
Better than ±5% of full scale over the
entire recommended probe-to-surface commands the voltage display to
entire recommended probe-to-surface
separation range of 30 mm to hold the value displayed until the
separation range of 5 mm to 25 mm.
60 mm. button is released.
Voltage Display
3 ½ digit liquid crystal display.
Range (Model 876)
0 to ±1999 V.
Range (Model 884)
0 to ±19.99 kV.
Resolution (Model 876)
1 V.
Resolution (Model 884)
10 V.
Sampling Rate
2.5 readings per second.
Dimensions
Dimensions 31 mm H x 59 mm W x 127 mm D
Probe Cable Length 31 mm H x 59 mm W x 127 mm D (1.2" H x 2.3" W x 5" D).
1.8 meter (6 ft.). (1.2" H x 2.3" W x 5" D).
Weight
Zero Offset Weight
200 g (7 oz), with battery.
Less than ±4 counts. 200 g (7 oz), with battery.
Power Requirements
Trek designs and manufactures
One (1) 9-volt NEDA 1604 battery,
many instruments for
IEC 6R61 battery, or equivalent.
Electrostatic Overstress/
Electrostatic Discharge
Power On/Off
Ground Receptacle
(EOS/ESD)
A push button.
Snap-on connector.
monitoring, detection, and
measurement.
Stability
Operating Conditions
Drift with Time
Temperature
For more information about these
Less than 600 ppm/hour,
15°C to 35°C.
or other products, contact
noncumulative.
Relative Humidity
TREK, INC. Drift with Temperature
To 85%, noncondensing.
Less than 600 ppm/°C.
0 20 40 60 80 100
0
V
V x 2
884 Performance
Surface Voltage
Typical Fieldmeter
Probe-to Surface Separation (mm)
Displayed
Voltage
Model 884 Compared to Typical Fieldmeter
Displayed Voltage vs. Probe-to-Surface Separation
0 10 20 30 40 50
0
V
V x 2
876 Performance
Surface Voltage
Typical Fieldmeter
Probe-to Surface Separation (mm)
Displayed
Voltage
Model 876 Compared to Typical Fieldmeter
Displayed Voltage vs. Probe-to-Surface Separation
All Model 876 specifications are with a probe-to-surface separation of 15 mm, ±10 mm.
All Model 884 specifications are with a probe-to-surface separation of 45 mm, ±15 mm.
TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
(fax) • www.trekinc.com • [email protected] 716-438-7555 • 716-201-1804