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MAN# 650411:B

 

10. 

Display will read 

SND

 signaling to select a sender type. Press SW1 to move through 

list forward, press SW2 to back up. Press both switches to save setting. The supported  

 

senders are listed below with the display that represents each option. 

 

 

Display  

Option 

 

No

 

 

No gauge, dedicated Dakota Digital sender only 

 

DD1

 

 

Dakota Digital individual temp gauge with sender 

 

DD2

 

 

Dakota Digital instrument cluster with control box (ver. STR-D or later, older versions use CUS) 

 

STE

 

 

Stewart Warner gauge and sender 

 

CLS

 

 

Classic gauge and sender 

 

VDO

 

 

VDO gauge and sender  

 

 

ATO

 

 

Autometer gauge and sender 

 

BUS

 

 

Dakota Digital BIM connection 

 

CUS

 

 

Custom calibrated gauge 

 

CAL

 

 

Custom calibration (for gauge sets not listed above) 

 

 
10a. 

If 

BUS

 is selected, the display will read the current BIM mode.  Press SW1 to move through 

list forward, press SW2 to back up. Press both switches to save setting. The supported  

 

senders are listed below with the display that represents each option. 

 

Display  

Option 

AUTO

 

 

Automatically select the bus operation mode. 

SL1

 

 

Connect to a VHX, VFD3 (SE47 or higher), or VFD3X (SE56 or higher) system. 

SL2

 

 

Connect to a VFD3 (SE46 or earlier) or VFD3X (SE55 or earlier) system. 

PAC

 

 

PAC-2750 is a master connected to a BIM-01-1 or similar unit. 

10b. 

If 

BUS

 is selected, following the BIM mode selection, the display will show 

dIs

 and then allow a high 

speed disable to be set or turned off.  The speed will be shown in MPH when the temperature is 
Fahrenheit or km/h when using Celsius.  Use SW1 or SW2 to set the speed at which the fan should turn 
off. Press both switches to save the setting.   

 

11. 

If your gauge is not supported in one of the options above, you will need to custom calibrate the controller for your 
gauge. (if 

CUS

 is selected and calibration has not been done, the calibration sequence will automatically be 

started). The following is the procedure for custom calibration. If your gauge system is listed above, skip this 
portion and continue at Step 12. 

 
Custom Calibration 

Note 1:   If your engine is warm you may need to disconnect the wire from your sender in order get to the lower  

points on the gauge. 

Note 2:  If the key is turned off in custom setup, the previous gauge setting will be used and the custom gauge will  

not be saved. 

Note 3: If your gauge does not have defined ticks with numerical temp readings, it is highly recommended to use 

a dedicated sender as calibration to the gauge is very inaccurate or impossible without temp markings.  

 

  CC1.  Select 

CAL

 in Step 9 on the previous page. Display will read 

ADJ

 

CC2.  Turn the potentiometer on the lower right corner of the unit (marked CUSTOM ADJUSTMENT) with a 

small flat screw driver. While doing so, watch your temp gauge and line up the needle with the lowest 
temperature tick
 on the gauge. Custom gauge must be calibrated starting at cold temperatures and 
moving to hot temperatures.  

 

Note: Turning potentiometer clockwise increases temperature reading. 

 

CC3.  Once the gauge is set to a tick, press SW1 or SW2. A temperature reading will appear on the display. 

Scroll to the temp reading that matches the tick temperature reading on the gauge using SW1 to increase 
and SW2 to decrease. Press both buttons to save the number. Display will again read 

ADJ

 

CC4.  Repeat steps CC2 and CC3 with the next lowest tick on gauge until all the ticks on your gauge have been 

set. (up to 6 but no less than 4 points).  Press both SW1 and SW2 at 

ADJ

  to stop setting points if there 

are less than 6 points on your gauge. If there are more than 6 points on your gauge, select points over 
the full range of the gauge (cold to hot). This will give a better match to your gauge.  

  

12. 

Unit will flash 

888

 to indicate set up is complete. The unit now has been set up. If the wiring and setup have been 

properly completed the unit should begin normal operation at this point.  

 

Summary of Contents for PAC-2750

Page 1: ...V NOT CONNECTED FAN Fan Low Fan High 12V Fan PWR 12V Fan PWR 12V To gauge control box or another BIM Required components for installation The PAC 2750 is shipped with necessary components for use with a single fan on a gauged system These parts include 1 PAC 2750 module 1 RLY 3 relay with wiring harness 1 BIM data cable 1 Instruction manual For some options of the PAC 2750 additional components ar...

Page 2: ...en entering setup mode with a VHX or VFD gauge system and the PAC 2750 connected with a BIM cable the fan will begin running continuously after a 2 minute delay IMPORTANT NOTE If using a gauge with this unit always ensure that your gauge is working properly If the gauge is not reading correctly the fan control unit will not have correct temperature information and cannot be guaranteed to properly ...

Page 3: ... temperature is to be set Use SW1 or SW2 to set the temperature and press both switches to save the setting 7 Display will read dLy Use SW1 or SW2 to cycle through the following options Press both switches to select an option Display Option OFF Fan will turn off when key is turned off 0 5 If fan was running at key off it will continue to run for 30 seconds after key is turned off 0 7 If fan was ru...

Page 4: ...utomatically be started The following is the procedure for custom calibration If your gauge system is listed above skip this portion and continue at Step 12 Custom Calibration Note 1 If your engine is warm you may need to disconnect the wire from your sender in order get to the lower points on the gauge Note 2 If the key is turned off in custom setup the previous gauge setting will be used and the...

Page 5: ...turning off the ignition pressing and holding SW2 and turning ignition back on If a selection cannot be found that closely matches your gauge you may have to custom calibrate to your gauge see Step 10 in setup Testing Fan operation diagnostic mode 2 A second diagnostic mode allows you to test the fan operation for the mode you have set This can be used to verify dual speed dual fan or variable spe...

Page 6: ... prevent excessive battery drain Fan turns on early late or not at all Unit has no constant power Display will not show anything when SW1 is held Unit has no keyed power dot on display flashes rapidly when SW1 is held Broken shorted wire to sender Wrong gauge is selected gauge setup Wrong sender used for no gauge setup Wrong bus type set for BIM gauge setup On temperature in setup is too high Fan ...

Page 7: ...blem with RMA number your full name and address street address preferred and a telephone number where you can be reached during the day Any returns for warranty work must include a copy of the dated sales receipt from your place of purchase Send no money We will bill you after repair Dakota Digital 24 Month Warranty DAKOTA DIGITAL warrants to the ORIGINAL PURCHASER of this product that should it u...

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