8455 & 8455A Line LoopTester Available with Field Replaceable Switches Simpsons Model 8455 Line Loop tester detects line shorts, opens and multiple ringers, DC voltages and loop resistance. It can measure DC voltage up to 100 volts and loop resistance to 2 megohms. A front panel reverse polarity switch allows changing polarity positions quicker and easier than manually switching test leads when making line checks. This switch is field replaceable, enabling your loop tester to be operational at all times without costly shop repairs. The compact durable construction of this tester ensures continued accuracy even under the most rugged field Model No. 8455 conditions. Field Replaceable Switches - Allows operator to get back to the job quickly with less downtime. The replacement toggles or push buttons can be kept in the truck and replaced on site, keeping the unit in service at all times. Designed for Telecom Applications - Accurately checks line shorts, opens and multiple ringers. Wide Measuring Range - Measures DC voltage 0-100V and resistance R x 1, R 10. Shorter Testing Time - Polarity toggle switch eliminates manually switching test leads when conducting line checks. Rugged for Field Use - Durable, compact (5-1/2 x 2-3/8 ) construction makes it portable, easy to store and rugged. Accurate, Finer Readings - 0-100 points scale calibration yields accurate readings. Resistance Model Standard Low Ohms Range Points Low Ohms R x 1 R 10 Center Value 100K 10K 50 points 500 Accuracy 2 of arc 2 of full scale 2 of arc Open Circuit Voltage (nom) 45V 45V N/A 1.2V Short Circuit Current (nom) 450 A 4.5mA N/A 2.4mA 1 Rev. 04-158455 & 8455A Line LoopTester Ordering Information Model 8455 Line Loop Tester Catalog Model 8455A Line Loop Tester Catalog Number (Low Ohms Version) Number 40010 40011 Field Rep. Switch Yes Field Rep. Switch Yes Low Ohms No Low Ohms Yes Accessories Included Case Yes Case Yes Leads Yes Leads Yes Battery Pack Yes Battery Yes Manual Yes Manual Yes Optional Accessories (Recommended) Case 00836 Case 00836 Leads 45001 Leads 45001 10 Pk. Replaceable Switches - Toggle 45025 10 Pk. Replaceable Switches - Toggle 45025 10 Pk. Replaceable Switches - Push Button 45026 10 Pk. Replaceable Switches - Push Button 45026 Specifications DC Voltage Range 100V Sensitivity Model 8455, 1K per volt Model 8455A, 3333 per volt Isolation 100V DC max. circuit to earth ground Overload Protection 10mA/250V fuse on all ranges Temperature Coefficient (57F to 97F): 2% F.S. (VDC) Power (1) Simpson 45V battery pack, Catalog number 00865 Physical Dimensions 5.5 (H) x 3.6 (W) x 2.4 (D), (14 x 9 x 6 cm) Weight 1 lb. (0.5 Kg) Specifications subject to change without notice 2 Rev. 04-15