The problem is, that as soon as you have more than one box (and one master clock) in the system – for instance, if you use a transport and DAC – then the errors can increase exponentially. The easiest solution is to synchronize the two clocks, designating one as the master and slaving the other to it. That’s exactly the solution provided by the Clock-Sync cards available for the CH Precision D1, C1 and I1, while the sophisticated software control incorporated into each of the units allows owners to designate master and slave according to circumstances and system topology. But what’s better than syncing two or more units to a single master clock? Syncing them all to a single, superior, external reference point – a reference like the T1 Time Reference external clock.

The T1 generates a super accurate, low-jitter signal that delivers measurably lower phase noise and more accurate transfer and conversion of digital signals. It is built around a high-frequency 10MHz oven controlled oscillator (OCXO), its core temperature and output further stabilized by encapsulation in a mechanically isolated billet aluminum block. Why not just use one of the popular and readily available Rubidium clock modules like everybody else? Because those Rubidium modules have a limited life span – generally between six and eight years – and they contain radioactive material. At CH Precision we expect our products to have a much longer working life than that, so incorporating components with a finite life is contrary to all our beliefs – especially if those components then present a serious disposal issue.


Input AC parameters ON-grid
Input voltage - factory set: 100 - 120 Vac / 230 - 240 Vac
Input frequency range - factory set: 45 to 65 Hz
Input current adjusted: 10 Aac
transfer time: < 15 ms, on grid to off grid

Output AC parameter OFF-grid
Output voltage - factory setting:  100-130Vac / 200-245Vac (pure sine wave)
Output frequency: 50 Hz / 60 Hz +/- 0.05% (crystal controlled)
Harmonic distortion: <2%
Continues power @ 25°C: 650 VA
Power 30min. @ 25°C: 1.100 VA
Peak Power 3 sec. @ 25°C: 2.600 VA
Ø battery operating time/average load 400VA (Cos φ=1): 4 hours
Maximum load: up to short circuit
Maximum asymmetric load: up to P cont.
Load detection (Stand by): 2.5 W
Cos φ: 0.1 – 1
Maximum efficiency: 93% (dc/ac conversion mode)
Consumption stand-by / on: 11.5 W / 8 W
Overload + short-circuit protection: automatic disconnecting with 3 restart attempts
Overheat protection: warning before shut-down with automatic restart
Operating temperature: 10 °C - 45°C
Relative Humidity: 0 - 85% non-condensing
Acoustic level: < 29 dB

Battery power unit
Battery type: LFP - Lithium Iron Phosphate (LiFePO4)
Nominal battery voltage: 48 Vdc
Nominal capacity: 40 Ah
Charge current - factory setting: 8 Adc
Working temperature: 0 to 45°C, 32 to 113°F
BMS - Battery Management System: active balancing

Terminal Area
AC output receptacles: 3x Hubbell duplex, Hospital spec. Grade or 3x Furutech High perfor. Schuko sockets
AC output fuse: thermal – magnetic circuit breaker
AC input connection: ICE 320 - C14 (fuse 16/10AT)
Interface: 3 service ports:
Power switch: on/off (“on” = green LED)
Safety key switch for shipping: key switch “Release/Lock” all functions

Additional Features
Finish standard: silver / black anodized *
Weight: 57 kg / 125 lbs
Dimension (w x h x d): 48 x 31 x 45 cm  | 19" x 12" x 17"
Remote control: optional

* metallic-black and meteorit front-finish available at additional cost.
Custom finish upon request.



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