Troubleshooting guide

Using Danfoss Transducers with 2783J qualified

boards

The analog boards used in the Vission and Vantage

panels after July 2003 have been modified to ac-

commodate the use of Danfoss transducers (VPN

2783J). These analog boards are denoted as “2783J

qualified” boards. The use of 2783J qualified boards

with Danfoss transducers require that scaling fac-

tors for the Danfoss pressure transducers be checked

and modified if necessary.

The scale factors for all transducers are located at a

specific Index location in Vission/Vantage database.

Refer to Figure 1. This table shows the proper scale

factors for each type of transducer as well as the

Index location of the scaling factor for each trans-

ducer.

N660 3950

Value* : The value 3950 shown is the Scale Factor for transducers manufactured by Ametek and

Setra. This does NOT include Danfoss transducers. If Danfoss transducers are being used with

2783J qualified boards, the “Value” at the Indexes shown above needs to be modified to 4297.

The procedure on the next page describes how to modify the scaling factor.

Figure 1. Transducer Index Table and Scale Factors

Vission and Vantage (VSS and SOI units) Vission (VRS units)

Transducer Index Value* Transducer Index Value*

Suction N658 3950 Suction N658 3950

Discharge N659 3950 Discharge N659 3950

Man/Filter Out N660 3950 Manifold N660 3950

Filter In N661 3950 Filter Inlet N661 3950

Filter Outlet (Retrofit) N664 3950

Vission and Vantage (Cool Compression units) Vantage (Recip)

Transducer Index Value* Transducer Index Value*

Suction N658 3950 Suction N658 3950

Discharge N659 3950 Discharge#1 N659 3950

Man/Filter Out N660 3950 Filter Out N660 3950

Filter Inlet N661 3950

Discharge#2 N662 3950

Oil Manifold N663 3950

Crankcase N664 3950

Modifications for Analog Board (Vission/Vantage after July 2003)