Industrial LCD displays, set by buttons, easy to use, has reset function.
High-performance microcontrollers, industrial-grade reliability, high process stability, low power, reverse power protection function, avoiding surge current shock.
Four relays, each group of relays has common and normally opened, normally closed contacts, 4 sets of conversion;
99 groups time, each timer range: 0.1 seconds ~ 9999 minutes adjustable, the total number of Loops is adjustable from 0 to 9999 ( “0” means run loops all the time ) ;
Each step can be set to cyclic jump to run forward 0-999 times, 20 layer nesting loops support (figure 2);
The external input high level and low level signals, achieve trigger function, wait input to run, jump to another step ,stop running functions;
User can set the password, to prevent others to change the setting parameters;
Shell size 115*90*40mm. All settings can be saved.

Timing Range : 0.1seconds ~ 9999 minutes can be set, cycles 0 ~ 9999 times
Operating power: DC6~40V
Relay parameters:
Four set of conversion (normally opened and normally closed)
Contact load: 10A/277V AC or 10A/30V DC Contact resistance: ≤ 100mΩ (1A 6VDC)
Mechanical durability: 10 millions
Electricity durability: > 100,000 (10A-250VAC)
Operating Temperature: -40 ~ 85℃

Important reminder:
Please read the user manual carefully before using it.

Package Included:
1*PTR4-SP Controller
1*PTR4_SP Controller User Manua1