Blasters Multimeter Kit: Model 209

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RECOMMENDED PRACTICE for Oilfield Explosives Safety.  API RP 67:
5.9 ELECTRICAL DETONATOR CIRCUIT TESTING INSTRUMENTS
The only instruments recommended for use when testing electrical detonators and detonator circuits are those specifically
designed and/or qualified for checking explosives and explosives circuits. The test current from the meter used to perform resistance checks shall not exceed 25 milliamperes or 10% of the no-fire rating of the detonator in the circuit, whichever is less.
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MODEL 109 BLASTERS MULTIMETER output: <4mA

MODEL 209 BLASTERS MULTIMETER output: <4mA

Designed for the blasting industry. The 209 Blaster's Multimeter Kit is for safe, precise circuit measurement when testing electric detonators & blasting circuits.  It has a built-in current limiting circuit with current output less than 0.004 amps (4 miliamperes).

Kit Specifications:
Multimeter: Amprobe 37XR-A TRMS Digital Multimeter (Features a custom built-in current limiting circuit with current output less than 0.004 amps (4 miliamperes))
Weight 5 LBS. (2kg)
Size 10.8 x 9.85 x 4.5 (274x250x114 mm)
Seal Dust and Damp Weather Proof Weather Proof
MSHA Approved NO
Battery Type 9V NEDA 1604/1604A
Current Output <4mA

Features:

Backlight, True-rms with component and logic test
Inductance to 40 H, frequency to 40 MHz, capacitance to 400 μF, logic to 20 MHz
Input warning tone when test leads are in wrong jack
10 Amps AC/DC, fully safety fused
Continuity beeper
Min/max, average, relative, peak, and data hold
Auto power off to save battery life
Separate door for easy battery and fuse access
Magne-Grip™ Holster with magnetic hanging strap
Autoranging; display: 4-3/4 digit LCD, 10,000 counts with 41-segment analog bar graph
Display Update Rate: 2/sec, nominal
Power Battery: 9 V NEDA 1604, JIS 006P, IEC 6F22
Operating temperature: 0 °C to 45 °C at < 70 % R.H

Meter Specifications
FEATURE
37XR-A
DC Voltage - 1.000 mV, 10.00 V, 100.0 V, 1000 V
AC Voltage - 1.000 mV, 10.00 V, 100.0 V, 1000 V
DC Current - 100.0 µA, 1.000 µA, 10.00 mA, 100.0 mA, 400.0 mA, 10.00 A
AC Current - 100.0 µA, 1.000 µA, 10.00 mA, 100.0 mA, 400.0 mA, 10.00 A
Resistance - 1000.0 O, 10.000 kO, 100.00 kO, 1000.0 kO, 10.00 MO , 40.00 MO
Continuity - •
Diode - •
VolTect™ Non-Contact Voltage Detection  
Capacitance - 40.00 nF. 400.0 nF, 4.000 µF, 40.00 µF, 400.0 µF
Frequency - 100.00 Hz, 1.0000 kHz, 10.000 kHz, 100.00 kHz, 1.0000 MHz, 10.000 MHz
Temperature –
Duty cycle - 0.00 % → 90.0 %
Logic test •
Inductance - 40 H
dBm -13 dBm → + 50 dBm

Specifications
DC Voltage ranges - 1000 mV, 10 V, 100 V, 1000 V
DC Voltage accuracy - All ranges ± (0.1 % rdg + 5 dgt)
DC Voltage resolution - 100 µV
AC Voltage (45 Hz to 2 kHz) True-rms ranges - 1000 mV, 10 V, 100 V, 750 V
AC Voltage (45 Hz to 2 kHz) True-rms accuracy - 750 V range: 45 to 1 kHz: ± (2.0 % rdg + 10 dgts)

All other ranges, 45 to 500 Hz: ± (1.2 % rdg + 10 dgts)

All other ranges, 500 to 2 kHz: ± (2.0 % rdg + 10 dgts)

AC Voltage (45 Hz to 2 kHz) True-rms resolution - 100 µV
AC coupled - True RMS specified from 5 % to 100 % of range
DC Current ranges - 100 µA, 1000 µA, 10 mA, 100 mA, 400 mA, 10 A
DC Current accuracy - 100 µA range: ± (0.5 % rdg + 10 dgt)

1000 uA to 400 mA ranges: ± (0.5 % rdg + 5 dgts)

10 A range: ± (1.5 % rdg + 10 dgt)DC Current resolution - 0.01 µA
AC Current (45 Hz to 1 kHz) True-rms ranges - 100 µA, 1000 µA, 10 mA, 100 mA, 400 mA, 10 A
AC Current (45 Hz to 1 kHz) True-rms accuracy - 100 µA to 100 mA ranges: ± (1.5 % rdg + 10 dgts)

400 mA range: ± (2.0 % rdg + 10 dgts)

10 A range: ± (2.5 % rdg + 10 dgts)
AC Current (45 Hz to 1 kHz) True-rms resolution - 0.01 µA
Resistance ranges - 1000 O 10 kO 100 kO 1000 kO 10 MO 40 MO
Resistance accuracy - 1000 O to 1000 kO ranges: ± (0.5 % rdg + 8 dgts)

10 MO range: ± (1.0 % rdg + 10 dgts)

40 MO range: ± (2.0 % rdg + 10 dgts)
Logic test, logic type
TTL, CMOS