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SST-7000 Series


Dynalco® Digital Speed Switch & Transmitter

Reliable, accurate over/under speed protection, transmitter with models upto 4 standard relay set-points and LED or keypad configuration display options.

The SST7000 use a pulse or frequency input to provide an accurate 4-20 mA output or 0-5/0-10 VDC linear output ready for direct interface with machine condition monitoring devices or systems. The available input isolation option helps resolve ground loop and signal conversion challenges. The devices accept sinusoidal and square wave inputs from variable reluctance and digital speed sensors.

The SST7000 can be easily programmed in a matter of a few minutes with a PC using a USB connection. Phoenix connectors on the units allow for quick dis-connect and overall ease of wiring.

PC software for communications and configuration, can be downloaded by clicking here: SST7000 Series Software


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  • Accepts 2 or 3-wire speed sensors
  • 0-50 KHz input frequency range
  • 4-20 rnA output (isolated)
  • 0-5 or 0-10 VDC linear output
  • 50 msec (std) or 10 msec (opt) response time
  • 0, 1, 2 or 4 SPDT relays
  • Failed (open) pickup sensing
  • Square wave repeater output
  • 10-36 VDC input supply power
  • Available input isolation transformer
  • PC programmable over USB port
  • Front Keypad programmable (for models with LCD Display)

Technical specifications

General Specifications*

Input Supply Voltage:
   DC rating (standard)

   AC rating:
   LCD Display only
   (-AC Suffix)

10-36 VDC, maximum 10 Watts (standard)

AC (and DC) supply voltage on terminals
115 to 275 VAC & 115 to 400 VDC, with maximum 10 Watts
lnput Types:

   Isolated RPM:
   (-I suffix)

Input Sensitivlty:
2-wire magnetic pickup (variable reluctance)
3-wire Hall-Effect
3-wire amplified VR type

Isolated RPM input from the power supply ground by more than 300V peak

From 25 mVRMS to 50 VRMS max
Output Accuracy:

Proportional Output:

0.1% of full-scale typical for all the outputs

4-20 mA (24V sourced - fully isolated)
with a resistance <1 kOhm 0-5 or 0-10 VDC with a resistance >20 kOhm
0-1 mA with a resistance <750 Ohm

SPDT contacts rated 6 Amps at 28 VDC or 115 VAC
Programmable for auto-reset or latching relay functions
Output Power: +12 VDC (40mA) output
(e.g. for active magnetic pickups)
Electrical Connection: Terminal block
Display lnformatlon:

Display screen:

Display update rate:
RPM, Alarms, Settings (RPM signal, setpoints / relay logic, analog input,
security, relay test, setpoint log, and display)

5-digit LCD, 2” x 1.22” screen dimension

Approx. 7 msec to update LCD display
Environmental: Operating temperature range: -40°C to +70°C
Storage temperature range: -40°C to +80°C
Mechanical: DIN rail mount (standard 35 mm)
Enclosure rating: NEMA 1
Approvals: CSA Certified, Class 1 Division 2, Groups A, B, C & D