Avtron T477W, Руководство пользователя

Страница: 7 / 38

Avtron Model T477W Bonding Meter
with B14703 Battery Pack Replacement Instructions
Part Number T477WC15292
Description
Subject to the EAR, ECCN [9E610.a]. This information is subject to the export control laws of the United States, specifically including the Export Administration Regulations (EAR),
15 C.F.R. Part 730 et. seq. Transfer, retransfer, or disclosure of this data by any means to a non-U.S. person (individual or company), whether in the United States or abroad, without any
required export license or other approval from the U.S. Government is prohibited, including without limitation any diversion to a military end user or use in a military end use application.
1-1
1 DESCRIPTION
The Model T477W Bonding Meter is a precision instrument using digital techniques to identify the integrity of electrical connections
by measuring and displaying small values of resistance (less than 2 ohms). The range of measurement is 0.2 to 2000 milliohms.
Resistance measurements smaller than 0.2 milliohms are possible with reduced accuracy.
The T477W Bonding Meter is supplied with a set of probes having four wire (Kelvin) connections. In addition, a separate power
supply is provided for charging the T477W batteries.
The T477W Bonding Meter is certified by Underwriter Laboratories per UL 913 as an intrinsically safe device for use in hazardous locations,
Class I--Group A, B, C, or D. These locations are identified by the National Electrical Code, National Fire Protection Association (NFPA)
document number 70, and are typified by the presence of flammable vapors such as hydrogen, propane, methane, and gasoline.
SPECIFICATIONS
RANGES AND
ACCURACY
NOTE:
Accuracy expressed as: +/- (% of
r x digits). Please refer to
probe descriptions for additional
accuracy considerations.
2 milliohms (C15479 and C16695 probes only)
2 milliohms (C22161 probe only)
20 milliohms
200 milliohms
2000 milliohms
+/- (1% + 5 )
+ (1% + 30) and – (1% + 10)
+/- (1% + 5 )*
+/- (1% + 5 )*
+/- (1% + 5 )*
* Applies to T477W used with
C15479, C16695, and C22161
probes only
OUTPUT: Maximum Current Output
Maximum Voltage Output
200 mA rms
200 mV rms, 500 mV(p-p)
WEIGHT: T477W
T477W, Probe Set, Charger and Case
3.22 lbs. / 1.46 kg
8.26 lbs. / 3.75 kg
C A U T I O N
**ESD** The Model T477W Bonding Meter contains Class I parts and
assemblies susceptible to damage by electrostatic discharge (ESD). Refer to
MIL-STD-1686A for ESD protective procedures.