The Type 72 digital display instrument includes single/three-phase voltage and ammeter, which can use AC or DC power input, and can have communication, alarm and transmission output. See Figure 2 on the back cover for product photos.
l Product Specifications
| Product name | Product model | Display mode | Nominal input | remark |
| Single-phase AC ammeter | YTAI-1BQ | Digital display | 5A、1A | CT variable ratio is provided |
| YTAI-1IQ | Digital display | Tape transfer output | ||
| YTAI-1RQ | Digital display | With communication output, optionally with alarm contact output | ||
| Single-phase AC voltmeter | YTAU-1BQ | Digital display | 57/100V 220/380V | AC57/100V provides PT ratio; |
| YTAU-1IQ | Digital display | Tape transfer output | ||
| YTAU-1RQ | Digital display | With communication output, optionally with alarm contact output | ||
| Three-phase AC ammeter | YTAI-3BQ | Digital display | 5A、1A | CT variable ratio is provided |
| YTAI-3IQ | Digital display | Tape transfer output | ||
| YTAI-3RQ | Digital display | With communication output, optionally with alarm contact output | ||
| Three-phase AC voltmeter | YTAU-3BQ | Digital display | 57/100V 220/380V | AC57/100V provides PT ratio; |
| YTAU-3IQ | Digital display | Tape transfer output | ||
| YTAU-3RQ | Digital display | With communication output, optionally with alarm contact output |
YTAI-1B(R)Q
Note: P1 and P2 are the power input of the device; IB1 and IB2 are current terminals.
TA, TB, and GND are communication terminals. J1 and J2 are alarm contacts.
YTAI-1IQ
Note: P1 and P2 are the power input of the device; IB1 and IB2 are current terminals.
B+ and B- are the converter output terminals.
YTAU-1B(R)Q
Note: P1 and P2 are the power input of the device; UB and UN are voltage signal inputs;
TA, TB, and GND are communication terminals. J1 and J2 are alarm contacts.
YTAU-1IQ
Note: P1 and P2 are the power input of the device; UB and UN are voltage signal inputs;
B+ and B- are the converter output terminals.
YTAI-3B（R）Q
Note: P1 and P2 are the power input of the device;
IA1, IA2, IB1, IB2, IC1, IC2 are current terminals.
TA, TB, and GND are communication terminals. J1 and J2 are alarm contacts.
YTAI-3IQ
Note: P1 and P2 are the power input of the device;
IA1, IA2, IB1, IB2, IC1, IC2 are current terminals.
A+, A-, B+, B-, C+, and C- are the converter output terminals.
YTAU-3B（R）Q
Note: P1 and P2 are the power input of the device;
UA, UB, UC, and UN are voltage terminals.
Three-phase three-wire UN is not connected;
TA, TB, and GND are communication terminals. J1 and J2 are alarm contacts.
YTAU-3IQ
Note: P1 and P2 are the power input of the device;
UA, UB, UC, and UN are voltage terminals.
Three-phase three-wire UN is not connected;
A+, A-, B+, B-, C+, and C- are the converter output terminals