Signal Test Timer

FRA Rules That Apply

Satisfy Requirements of FRA Signal Rules With Our Test Equipment
Rule # Rule Description S & C Equipment
236.109 Time Releases, Timing Relays, Devices Model 410 Test Timer

410 Signal Test Timer

The Model 410 Signal Test Timer has several capabilities that address various operations and signal related needs.

  1. Portable. Operates on furnished, plug-in 120VAC to 12VDC power supply or local battery, or Battery Kit accessories. Can also be installed on a permanent basis.
  2. Data from tests is recorded and can be downloaded. Download is implemented with the use of HyperTerminal (r), a program provided with Windows(r) operating system, or other standard communication program, through a USB port. Complete instructions for downloading, the printing of reports, etc., are provided in the Instruction Manual for the Model 410 Signal Test Timer.
  3. Determines Train Speed (PN: 410-18 Train Speed Transducer Kit and PN: 330-23T Battery Kit or 330-24 Battery Kit req'd) - install Train Detector Transducers on same rail, 100 feet apart. Connect cables to the Train Detector Transducers and the Timer Speed Interface. Attach power source (Battery Kit, etc.) to the Timer. Connect Timer Speed Interface to the Timer and wait for trains to pass. The installation process takes approximately thirty minutes to complete, once access to the track has been granted by the dispatcher. See hook-up diagram below.
  4. Determines Activation Lag & Throw Times of Switch Machines - Dry set of contacts from switch machine normal and reverse indications are connected to the Form C Inputs and normal and reverse voltages from the switch machine control point are applied to the Automatic Inputs.
  5. Determines Code Relay Rates - connect front and back contact of code relay to Form C Inputs.
  6. Determines Transition Times of Searchlight Signals - Connect normal and reverse contacts of searchlight signal to Form C Inputs
  7. Determines Activation Times of Solenoids equipped with contacts.
Typical field hook-up.


Accuracy: +/- 0.001 Seconds
Input Voltage: 10-16VAC or VDC (must match relay under test)
Operating Current: Minimum 60mA AC or DC, and will depend on relay load
Coil Output Voltage: Varies with and is less than input voltage depending on coil value.
Sense Input Isolation: Opto Coupler
Environmental Operating Temperature Range:
LCD Display: +15 deg. to +160 deg. F
Timer Functions: -40 deg. F to +160 deg. F

Timer Messages Displayed on LCD Screen:

Code Relay:
Code Rate
Period in Milliseconds
On Time Percentage
Off Time Percentage

Normal or Time Delay Relays:
Time Pick
Time Drop

Automatic Mode:
Activation Lag Times
Normal Throw Time
Reverse Throw Time

Speed Mode:
Speed in Miles Per Hour or Kilometers Per Hour (user selected)
Speed in Feet Per Second or Meters Per Second (user selected)

Description Part Number
Model 410 Signal Test Timer, w/padded case, 500mA DC Power Supply & six 8 ft leads 410-1
Train Speed Transducer Kit (includes 2 transducers, Timer Speed Interface, Cable with Spools and Full-Kit Carry Cases 410-18
Battery Kit, 1.2AH w/Charger, to mount in padded case of Timer 330-24
Battery Pack, 3.0AH, w/Charger, Carrying Case & Connector 330-23T
Carry Case (HD canvas for Timer and 3.0AH Battery Kit 506BZB