| | PR8111 | PR8112 |
| No. of pens | 1 pen | 2 pens |
| Operating method | Self-balancing, Disposable felt pen recording |
| Input | DC Voltage (Isolated input channels, isolated input and frame) |
| Measurement ranges | ±1 mV to 500 mV (9 ranges), ±1 V to 250 V (8 ranges) |
| Max. allowable input | 250 V DC (at V range), 30 V DC (at mV range)
Max. rated voltage to earth: 300 V DC, AC |
| Recording accuracy | ±0.5 % of effective recording width (excluding contraction and expansion of recording paper) |
| Recording width | 150 mm (5.91 in) |
| Pen interval | 5 mm (0.20 in) |
| Pen speed | 500 mm/s or greater (using AC adapter) |
| Chart speed | 10 mm/min to 600 mm/min (8 ranges), 10 mm/hr to 600 mm/hr (8 ranges)
Accuracy: ±0.25 % (at 500 mm or higher continuous recording) |
| Recording paper | Fanfold plain paper: SE-10Z-2, length: 15 m (49.22 ft)
Roll plain paper: SE-10, length: 20 m (65.62 ft) |
| Power supply | (1) AC ADAPTER 9418-15 (100 to 240 V, 50/60 Hz)
(2) D size alkaline battery (LR20) × 6 (When used with the AC adapter, the adapter takes precedence)
(3) DC power supply: 10 to 27 V DC (cable available by special order) |
| Continuous use time | 50 hr (based on in-house testing conditions, use LR20 batteries) | 25 hr (based on in-house testing conditions, use LR20 batteries) |
| Max. rated power | 4 VA (AC adapter, DC power) or 3 VA (dry-cell batteries) |
| Dimensions, mass | 292 mm (11.50 in) W × 177 mm (6.97 in) H × 182 mm (7.17 in) D, 3.9 kg (137.6 oz) (main unit only), 4.8 kg (169.3 oz) (with dry-cell batteries) | 292 mm (11.50 in) W × 177 mm (6.97 in) H × 182 mm (7.17 in) D, 4.4 kg (155.2 oz) (main unit only), 5.3 kg (186.9 oz) (with dry-cell batteries) |
| Supplied accessories | FELT PEN P-1201A (Red) ×1, RECORDING PAPER SE-10Z-2 (fanfold) ×1, AC ADAPTER 9418-15 ×1, Instruction Manual ×1, Drip-proof cover ×1 | FELT PEN P-1201A (Red) ×1, FELT PEN P-1202A (Green) ×1, RECORDING PAPER SE-10Z-2 (fanfold) ×1, AC ADAPTER 9418-15 ×1, Instruction Manual ×1, Drip-proof cover ×1 |
