Environmental Specifications Complete installation instructions are included with the product, and at www.colehersee.com Characteristic Parameter Notes Operating temperature range -40° to +85°C -40° to +185°F 10A at 85°C Ingress protection rating IP67 Per IEC 529 Information on New Products from Cole Hersee Humidity 0 to 90%RH Vibration 10-500Hz Per SAE J1455 FlexMod Dual Output Voltage Sensing Relay & Timer Shock Per SAE J1455 Thermal shock Per SAE J1455 Inductive Transient +/- 600V Per SAE J1455 Load dump +150V Per SAE J1455 TM No more dead batteries! Controls two outputs, monitors voltage and time on both Electrical Characteristics Characteristic Min. Typ. Max. Units Ideal for emergency vehicles and many other applications. Notes Output 1 disconnect voltage (factory standard) 11.5/23.0 Volts For 12V/24V systems Output 1 disconnect Timer (factory standard) 60 Minutes Output off delay after input de-activation Output 1 Overcurrent protection 15 Amps System disconnects load after one second of excessive current Output 2 disconnect voltage (factory standard) 12.1/24.2 Volts For 12V/24V systems Output 2 disconnect Timer (factory standard) 15 Minutes Output off delay after input de-activation Output 2 Overcurrent protection - Amps Output not protected 1080 Minutes Programmable Timer limits 12/24 32 Volts Operating Voltage is the system voltage 1 2 Milli-Amp Stand-by current Output 1 load current (pin 3) 10 Amps At +85°C Output 2 load current (pin 6) 0.2 Amps At +85°C Key off timer programmable limits 0.1 Operating Voltage 9 Quiescent current Relay Protects battery voltage two ways. After the vehicle engine is turned off, the DVSRT shuts down the auxiliary loads based on two factors - battery voltage, and time after shutdown. Unit is auto-ranging – it senses 12V or 24V systems. One unit for either system. Part number 48742 Dealer-programmable unit Unit can be used as-is, with factory-programmed presets, or can be programmed by dealers to a broad scale of values. Solid-state: stands up to vibration, water and grime. Mounts anywhere on the vehicle, even in locations that receive salt roadsplash. Sealed to IP67. Installation Configurations Load 2Laptop Protects starting battery from being drained by auxiliary loads. Features & Benefits Load 1 Preserves starting power; eliminates downtime and jump starts due to dead batteries. Simultaneous time and voltage monitoring protects starting. Dual output unit (controls two circuits) permits prioritization of load-shedding. Ignition Switch Monitors voltage and time simultaneously, providing double the protection to batteries. Battery will not be drained if battery voltage gets low before timer has run out. 10A rating means that the unit can handle many loads directly or drive a relay or solenoid for higher amperages. Battery Littelfuse Commercial Vehicle Products • 20 Old Colony Avenue, Boston, MA USA 02127-2467 210. 621.1845 • www.colehersee.com • www.littelfuse.com Littelfuse Commercial Vehicle Products D-644 Rev A The FlexMod Family of Products Common FlexMod Applications TM The FlexModTM family is a series of small, robust solidstate modules with two inputs (one analog and one digital) and two solid state outputs (one 10A, one 200mA) that can be programmed to do almost any job. Standard units listed below are designed for specific types of applications, although they can be set to a wide range of parameters by dealers with programming units. TM Easy snap-in wiring with standard sealed connector Two outputs, two inputs Cole Hersee designed these units to solve problems in many industries. Here are a few of the thousands of potential applications. Contact us with your specific application requirements. Compact unit 3" x 4" x 1" Traffic Arrow Board Optional Relay In-Cab Radio 48610 Low Voltage Disconnect Monitors voltage. Preserves battery charge and protects battery banks by automatically disconnecting loads when battery voltage drops to a critical level. Unit 48610, unit & harness 48610-01, programmable unit 48710, programmable unit with harness 48710-01. See Hot Feed D-630 External Alarm Ultra-low standby current Battery Microrelay Sealed to IP67. Can be mounted anywhere FlexMod Dimensions 4.00 [101.6] 48541 Voltage Sensing Relay & Timer Monitors voltage and time, and is available in two types: one load + pilot/alarm circuit; two loads. The unit monitors ignition status, shutting down non-critical loads when the cutoff voltage is reached, or at the set time after the ignition is turned off. Single output version 48541, unit & harness 48541-01, programmable unit 48741, programmable unit with harness 48741-01. Dual output version factory-set/programmable unit 48741, and this unit with harness 48741-01. See Hot Feed D-633 (single load VSRT), and this HotFeed (D-644) for Dual VSRT. Engineering Panel Lights 1.01 [25.8] 0.27 [6.9] Light Bar Radios 0.62 [15.7] Cordless Light Charger Computers 8-Pin sealed Deutsch connector Program the 48710 FlexMod LVD to combine low voltage warning and/or single circuit load management in one unit. A second 48710 FlexMod LVD can manage other loads, and if mounted close to the loads, will minimize wiring runs. Battery 2.70 [68.6] 1.31 [33.3] VSRT Battery Optional Relay Typical Application 3 Combined timer/voltage shutoff for police vehicles 48541 FlexMod VSRT combines two functions (time and voltage) in one small unit that opens up options for mounting in a small space, and simplifies wiring and other components. The FlexMod VSRT protects starting power with simultaneous sensing of time and voltage. Internal Lighting Dealer programming of units FlexMod is a highly versatile unit that can be programmed by dealers, to meet the customers’ specific applications. Parameters of time, voltage, and current limits are easy to customize, using straightforward on-screen options. Our programming unit connects your computer directly to a FlexMod, which can be programmed within minutes. The system has the advantage of accessing the FlexMod electronics via the integral connector. Unlike competitive products, this is a straightforward non- invasive process which does not compromise the waterproof integrity of the unit. Typical Application 2 NFPA 1901 Load Manager compliance for fire vehicles LVD LVD 3.30 [83.8] 48540 Smart Battery Isolator Controller Monitors voltage on two battery banks. Unit monitors two battery banks and controls one or more relays or contactors to make sure starting power is protected, by isolating the starting and auxiliary battery banks. Single load version 48540, unit & harness 48540-01, programmable unit 48740, programmable unit with harness 48740-01. See Hot Feed D-632 Compartment Lights TM Radios & Computer Use the 48610 FlexMod LVD to protect starting power, and save fuel (and fines!) by eliminating idling. By connecting safety signboard (or other loads) to the LVD, the signboard can be safely run with the engine off, without the risk of a dead battery. By connecting the horn or external alarm to the alarm circuit, the vehicle operator will be warned of impending shutdown. Flashlight Charger Horn 48636 Lighting Timer Monitors time. Prevents the internal lights inside a trailer from being left on and draining the battery. Vehicle operator operates a handy momentary switch to turn lights on, giving safe and sufficient light within the cargo compartment. After 20 minutes the unit flashes the compartment lights to give the operator sufficient warning either to exit or re-set the switch. Single load version 48636, unit & harness 48636-01, programmable unit 48736, programmable unit with harness 48736-01. See Hot Feed D-631 Typical Application 1 Idle reduction for work vehicles Stereo Typical Application 4 Smart charging system for boats Ignition Switch Smart Isolator Timer Solenoid Battery 1 Bilge Blower Battery 2 The 48540 FlexMod Smart Isolator Controller turns an existing solenoid charging system into a smart system. The FlexMod protects the alternator with priority charging, and allows shore power connected to the house battery to charge the starting battery as well! The 48610 protects batteries from damage.
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