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Heater Burn-out Detectors
From Transwiki
Contents |
[edit] Heater 'Burnout' Detector
[edit] Single and 3-phase
[edit] Stalled Motor Detector
Self powered (When current is above 5A)
BO Detector Series Burned out heater elements cost time and money to diagnose. Don't let them cost you down time. Get the Burnout detector! Unique self-powered design saves complexity and wiring time. The burnout detector works by sensing the AC current and activating at the specified set point. Sensing a repeatable specific trip-point, allows the burnout detector to monitor multiple parallel connected heater elements. The BO series can detect stalled motors by sensing the out of range current. In 3-phase operation (using a delta or 4-wire-Y configuration), of the Transtronics Burnout detector allows one sensor to monitor all three phases. Upon detection, it lights the LED and optionally activates an output. Four basic output versions are available: LED lamp only, open collector, Triac and form C relay. Options include: large pass opening, adjustable set-point and remote mounting LED.
[edit] Applications:
[edit] Standard 0.875" Opening
- Plastic Extrusion Injection Molding
- Tank Heaters
- Process Heaters
- Stalled Motor Detector
- Load Shedding
- Dust collectors
| Specifications | |
|---|---|
|
Set point current range (specify with order) | to 1KA (When setpoint is below 5A 5Vdc must be applied to pin 3) |
|
Set point accuracy | +/-15% (5% on adjustable units) 10% dead-band |
|
Output current Relay option | 4A @ 220 Vac 5A@30Vdc/120Vac see drawing below for pin out |
|
Triac output version | 2A @ 220 Vac |
|
Transistor output option | 20 mA 24V (Pin 8 negative.; Pin 6 positive) |
|
Ambient Operating Temperature | 0 C to 60 C |
|
Octal Case Size | 2.75 X 1.75 X 2.375 inches (excluding octal pins) |
|
Pass through opening | 22.2mm [0.875"] Optional 31.7mm [1.25"] opening available |
|
Adjustable versions available | |
|
Relay power supply | 12V or consult factory |
[] - denotes legacy units
[edit] Operation
- In single-phase configurations, LED and optional outputs are active on normal operation.
- When applied in both the Delta and 4-wire-Y 3-phase configurations, LED and optional outputs are active on heater failure.
- The calibrated set point allows sensing of single element failure in parallel connected heater elements in both single and 3-phase installations.
- The Delta configuration requires three wires threaded through the sensor; make sure you have enough room.
- The 4-wire-Y 3-phase configuration provides a simple neat installation with minimal wiring.
Optional 1.25" Opening order -LD
[edit] Wiring Diagrams
One or 3 Wire(s) with Ac current are threaded through opening.
No electrical contact is made with the current carrying wire
Remote mount LED wiring Pin 2 goes to + (plus) or the long lead
Pin 4 goes to - (minus) or the short lead. No dropping resister is required
Remote mount LED is not compatible with Triac version
Din rail mountable bases are available as an accessory
Let Transtronics help you with your application. We want to help you solve your automation problems.
|
For Pricing call 785 841 3089 (most versions are less than $100) | |
|---|---|
| Order number | Description |
|
BO-LED | LED only |
|
BO-OC | Self powered Transistor output |
|
BO-TRIAC | With self powered 2A Triac output |
|
BO-RELAY | 4 A Form C Relay output - requires external power |
|
-LD | Large pass through opening option 1.25" (31.7mm) |
|
-ADJ | Adjustable set point option |
|
-L24 | External 24 power to LED (Pin 7) option |
| Din-rail/panel mountable octal base accessory | |
