Blasters Digital Multimeter: Model 109

Modified for the blasting industry. The 109 Blasting Multimeter is designed for safe, precise circuit measurement when using electric detonators.  It has a built-in current limiting circuit with current output less than 0.004 amps (4 miliamperes).

Features: 3.5 digit LCD, 1999 count, 6k protection for all voltage & resistance ranges, 600v overload protection in all resistance ranges.

Weight: 20 oz. (.56kg)
Size: 3.9 x 7.2 x 2(99x182x51 mm)
Seal: Dust and Damp Weather Proof Weather Proof
MSHA Approved: NO
Ranges: 8 Range
Battery Type 9V NEDA 1604/1604A
Current Output: <4mA

The 109 is designed for professional use in harsh environments. The meter is unusually rugged and reliable in everyday heavy use applications. The meter is made using waterproof construction to prevent dirt, grime and moisture from entering the case and causing inaccurate readings or damaging shorts. Built of tough, fire-retardant thermoplastic resistant to grease and chemical spills, with all sensitive components shock-mounted for a drop resistant to at least eight feet.
The 109 has an extended voltage measurement capability of 1500 V dc and 1000 V ac, unmatched by any other line of digital multimeters. The extended voltage ranges can withstand transients up to 12 kV.


General Specifications
Display: 3-1/2 digit LCD, 1999 counts, with annunciators and menu features
Polarity Indication: Automatic
Input overload indication: 1
Low Battery Indication: Battery < 50 hours battery life remain, accuracy is no longer guaranteed
Display Update Rate: 2.5/sec, nominal
Oper. Temp.: 0°C to +50 °C, (< 75 % R.H.)
Storage Temp.: -20°C to 60°C, 0 to 80 % RH, battery removed
Temperature coefficient: 0.1 x (spec. accuracy)/°C (0° to 18°C and 28° to 50°C) all functions and ranges except for mVDC
0.3 x (spec. accuracy)/°C (0° to 18°C and 28° to 50°C) for mVDC
Altitude: Up to 2000 m - indoor use
Fuse: F 2 A/1500 V fuse (8 mm x 65 mm), I.R. 30 kA - Amprobe p/n FP700
Power: Standard 9 V battery, NEDA 1604, JIS 006P,IEC 6F22Auto Power-Down Meter powers down after approx. 30 min. of inactivity.
Battery Life: 250 hours typical with carbon-zinc, 500 hours typical with alkaline
Dimensions: (H x W x D) 200 x 102 x 59 mm (7.9 in x 4.0 in x 2.3 in)Weight (incl. battery) 642 g (20 oz)
Accessories: Heavy Duty CAT IV 1000 V Test leads with threaded alligator clips (TL1500), battery (in instrument), hex wrench in holster, Magne-Grip flex strap and User Manual
Case: material Flame retardant, high-impact thermoplastic
Safety Meets: EN 61010-1 CAT IV 1000 V (1500 V DC max) Class II, EN 60529:IP67
EMC: Meets EN 61326-1

Electrical Specifications (Accuracies at 23 °C ± 5 °C, <75 % RH non-condensing, guaranteed for one year.)

Function Range Accuracy
DC Volts
Ranges: 200 mV, 2 V, 20 V, 200 V, 1500 V
Resolution: 0.1 mV
Accuracy: All ranges ±(0.1 % rdg+2 dgts)
Input Impedance: 10 M ohms
OL Protection: 1500 V dc/1000 V ac rms
Transient Protection: 12 kV impulse (1.2 ¼S/50 ¼S) based on EN 61010-1:2001 impulse requirement for at CAT IV 1000 V product. This product should not be used in installations where transients exceed 12 kV.

AC Volts (45 Hz to 2 kHz)
Ranges: 200 mV, 2 V, 20 V, 200 V, 1000 V
Resolution: 0.1 mV
Accuracy: 200 mV to 200 V (45-500 Hz) ±(0.8 % rdg+4 dgts)
. 200 mV to 200 V (500 Hz-2 kHz) ±(1.5 % rdg+5 dgts)
. 1000 V (50-60 Hz) ±(0.8 % rdg+4 dgts)
. 1000 V (60-500 Hz) ±(1.5 % rdg+5 dgts)
Input Impedance: 10 M ohms
OL Protection: 1500 V dc/1000 V ac rms
Transient Protection: 12 kV impulse (1.2 ¼S/50 ¼S) based on EN 61010-1:2001 impulse requirement for at CAT IV 1000 V product. This product should not be used in installations where transients exceed 12 kV.

DC Current
Ranges: 200 ¼A, 2 mA, 20 mA, 200 mA, 2 A
Resolution: 0.1 ¼A
Accuracy 200 ¼A to 20 mA ±(0.5 % rdg+2 dgts)
. 200 mA to 2 ±(1.0 % rdg+2 dgts)

Function Range Accuracy
DC Current (cont.)
Voltage Burden: 250 mV max. (1 mV/1 ¼A on 200 ¼A Range)
. (100 mV/1 mA on 2 mA Range)
. (10 mV/1 mA on 20 mA Range)
. (1.5 mV/1 mA on 200 mA Range)
. (500 mV/1 A on 2 A Range)
OL Protection: A Input (F 2 A/1500 V, size 8 x 65 mm IR fast blow ceramic) (FP 700)
AC Current (45 Hz to 1 kHz)
Ranges: 200 ¼A, 2 mA, 20 mA, 200 mA, 2 A
Resolution: 0.1¼A
Accuracy 200 ¼A to 20 mA ±(0.8 % rdg+4 dgts)
. 200 mA to 2 A ±(1.2 % rdg+4 dgts)
Voltage Burden: 250 mV max. (1 V on 2 A range)
OL Protection: same as DC Current

Resistance
Ranges 200 ohms 2 k ohms, 20 k ohms, 200 k ohms, 2 M ohms, 20 M ohms
Resolution 0.1 ohms
Accuracy 200 ohms ±(0.5 % rdg+4 dgts)
. 2 k ohms to 200 k ohms ±(0.3 %rdg+2 dgts)
. 2 M ohms ±(1.0 % rdg+4 dgts)
. 20 M ohms ±(2.0 %rdg+4 dgts OL Protection 1500 V dc/1000 V ac rms
Open Circuit Voltage: 200 ohms range 3.0 V dc typical
. all other ranges 0.3 V dc typical.

Diode/Continuity Test
Test Current: 1m A dc typical
Test/Open Circuit Voltage: 3.0 V dc Typical
Diode Accuracy: +/-(1.5 % rdg+2 dgts)
Continuity Audible Threshold: <50 ohms +/- 25 ohms
Response Time: <100 msec
OL Protection: 1500 V dc/1000 V ac rms